Kinetics and Mechanism of the Anilinolysis of O-Ethyl Phenyl Phosphonochloridothioate in Acetonitrile
作者:Md. Ehtesham Ul Hoque、Hai-Whang Lee
DOI:10.5012/bkcs.2012.33.8.2707
日期:2012.8.20
investigated in acetonitrile at . The deuterium kinetic isotope effects (DKIEs) invariably increase from a secondary inverse DKIE ( = 0.93) to a primary normal DKIE ( = 1.28) as the substituent of nucleophile (X) changes from electron-donating to electron-withdrawing. These can be rationalized by the gradual transition state (TS) variation from a backside to frontside attack. A concerted mechanism is proposed